This question has been on my mind lately. Primus made all of the Transformers, and just like our religious gods, his origin is very undefined, sketchy, and enigmatic. If Primus made Cybertron, the Transformers, and everything related to them, who made him? Was he made by some alien race we don't know about? Did he just form on his own through some strange process? Was he a member of a long dead race of the robots similar to the Transformers that evolved into a God?

If anyone can shed light on this, or tell me their theories, I would appreciate it very much.

So, basically, Primus is the son of God. He plays the Jesus role in the universe, by sacrificing himself to save the Universe from Unicron, who is like Satan, a creation of God went wrong. Vector Sigma and the well of Allsparks are like the Tao, a single collection of energy that the Spark of a Cybertronian returns to when it goes offline and returns to being part the one. (Till All are One?) The Vok are like Angels and you can consider the Primes to be like Saints, or even Popes. It can get very philosophical for what was once a Toy commercial. I think that it took the Toy Line coming to an end, or at least an unsure thing, and an aging audience, to get the writers (starting with Furman) to be able to experiment with a little more complex story lines that could even be thought of as slightly controversial when it comes to the various religious elements in them.